In yet another twist in this year's zany Republican primary race, Donald Trump is threatening to sue Ted Cruz on the basis of being a liar. During an interview with George Stephanopoulos on Good Morning America Monday morning, Trump stated that he is "very seriously" thinking about suing Cruz. "I've never dealt with anybody who lies like him." One might wonder if suing Cruz is the most effective use of Trump's time, with the Nevada and South Carolina primaries approaching and Super Tuesday right around the corner, but you might also be questioning the feasibility. Could Donald Trump really sue Ted Cruz?

Quite simply, Donald Trump can sue whomever he wants for just about anything. Trump could absolutely sue Cruz, which would be a downer on both their campaigns, but would definitely keep the media spotlight on Trump. The matter of winning a potential suit is less cut-and-dry, but it certainly would exhaust time and resources that Cruz can't afford to lose — he's lagging behind Trump, with Rubio hot on his tail.

Trump's other grievance with Cruz is a vague claim about lying, which again tends to lack specificity in interviews. But even specific instances of lying more than likely couldn't support a lawsuit, because unfortunately, it doesn't really matter if Cruz lies to voters. According to FactCheck.org, "candidates have a legal right to lie to voters just about as much as they want." It's rare for candidates to sue over false information, and even rarer for a candidate to sue another candidate, but if Trump did sue Cruz, it's questionable how far the suit could go before fizzling out.

Trump can sue Cruz, but should he? Signs point to no — it's a distraction from the politics, unlikely to achieve anything substantial, and a pretty underhanded tactic. However, the same could also be said of Trump's entire campaign, so there might be a lawsuit in the near future.